Gergely CZUCZY wrote:
On Tue, Jan 15, 2008 at 09:38:00AM -0800, Sam Leffler wrote:
Gergely CZUCZY wrote:
Good morning,
I'd like to ask whether there was any updates, news, anything
about the Broadcom cryptoaccelerators' AES support in the recent
past. ubsec(4)[1] tells at the BUGS section, that it's awaiting
some information from broadcom. It would be nice to have AES
support for these cards, since the hifn(4) ones don't provide
as much performance as the broadcom ones, according to the
utilities in the source tree, google, and the vendors themselves.
[1] http://www.freebsd.org/cgi/man.cgi?query=ubsec
Broadcom never gave me the ok to add the AES support; will ask again.
As to performance I believe hifn 7956 parts were on a par w/ the 5823 but it's been a long time. The main issue isn't the speed of the
crypto part but the bus+dma glue.
And also stability. I've experience system crashing with the soekris vpn1401.
It was
kinda strange. Existing things worked (like an opened ssh connect, the box is a
gateway),
but I couldn't even fork() new processes, use apache, open new ssh connections
to the
box, anything. And the interrupt load was also a bit too high. Anyways, it's a
different
issue.
Hifn contributed many driver fixes for the 795x parts but some are not
yet in cvs. However I recently tested a Hifn reference 7956 card w/
HEAD and couldn't make it fail as it used to. I've requested help
getting all the hifn changes into the tree but gotten no responses.
Silicom has drivers for both windows and linux, and they support AES. I wasn't
able to
download the driver (got an empty page), so I don't know whether its opensource
or not.
Sam
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